diff --git a/package-lock.json b/package-lock.json
index 09b66d261..e3322d21d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9932,12 +9932,22 @@
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@@ -9947,7 +9957,6 @@
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@@ -10390,7 +10399,7 @@
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@@ -12779,7 +12788,8 @@
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@@ -12787,7 +12797,8 @@
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+          "bundled": true,
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@@ -12890,7 +12901,8 @@
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+          "bundled": true,
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@@ -12900,6 +12912,7 @@
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@@ -13017,7 +13030,8 @@
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@@ -13027,6 +13041,7 @@
         "once": {
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+          "optional": true,
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@@ -13132,6 +13147,7 @@
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       "version": "0.0.7",
@@ -26412,7 +26768,7 @@
     },
     "pretty-hrtime": {
       "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/pretty-hrtime/-/pretty-hrtime-1.0.3.tgz",
+      "resolved": "http://registry.npmjs.org/pretty-hrtime/-/pretty-hrtime-1.0.3.tgz",
       "integrity": "sha1-t+PqQkNaTJsnWdmeDyAesZWALuE="
     },
     "printf": {
@@ -33471,9 +33827,9 @@
       "optional": true
     },
     "v8flags": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/v8flags/-/v8flags-3.1.0.tgz",
-      "integrity": "sha512-0m69VIK2dudEf2Ub0xwLQhZkDZu85OmiOpTw+UGDt56ibviYICHziM/3aE+oVg7IjGPp0c83w3eSVqa+lYZ9UQ==",
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/v8flags/-/v8flags-3.1.1.tgz",
+      "integrity": "sha512-iw/1ViSEaff8NJ3HLyEjawk/8hjJib3E7pvG4pddVXfUg1983s3VGsiClDjhK64MQVDGqc1Q8r18S4VKQZS9EQ==",
       "requires": {
         "homedir-polyfill": "^1.0.1"
       }
@@ -33700,9 +34056,12 @@
       },
       "dependencies": {
         "convert-source-map": {
-          "version": "1.5.1",
-          "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.5.1.tgz",
-          "integrity": "sha1-uCeAl7m8IpNl3lxiz1/K7YtVmeU="
+          "version": "1.6.0",
+          "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.6.0.tgz",
+          "integrity": "sha512-eFu7XigvxdZ1ETfbgPBohgyQ/Z++C0eEhTor0qRwBw9unw+L0/6V8wkSuGgzdThkiS5lSpdptOQPD8Ak40a+7A==",
+          "requires": {
+            "safe-buffer": "~5.1.1"
+          }
         }
       }
     },
diff --git a/package.json b/package.json
index c994acc2f..ef72d7bfb 100644
--- a/package.json
+++ b/package.json
@@ -143,7 +143,7 @@
     "fast-levenshtein": "^2.0.6",
     "file-loader": "^1.1.11",
     "fuse.js": "^3.2.0",
-    "gulp": "github:gulpjs/gulp#4.0",
+    "gulp": "github:gulpjs/gulp#v4.0.0",
     "gulp-autoprefixer": "^5.0.0",
     "gulp-debug": "^3.2.0",
     "gulp-eslint": "^4.0.0",